CA1163777A - Preparation of white liquor - Google Patents
Preparation of white liquorInfo
- Publication number
- CA1163777A CA1163777A CA000325039A CA325039A CA1163777A CA 1163777 A CA1163777 A CA 1163777A CA 000325039 A CA000325039 A CA 000325039A CA 325039 A CA325039 A CA 325039A CA 1163777 A CA1163777 A CA 1163777A
- Authority
- CA
- Canada
- Prior art keywords
- liquor
- lime
- pressure
- temperature
- green liquor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 17
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 13
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 13
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000292 calcium oxide Substances 0.000 claims abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 8
- 235000017550 sodium carbonate Nutrition 0.000 claims abstract description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 5
- 238000004537 pulping Methods 0.000 claims abstract description 3
- 229940001593 sodium carbonate Drugs 0.000 claims abstract 3
- 235000010216 calcium carbonate Nutrition 0.000 claims abstract 2
- 229960003563 calcium carbonate Drugs 0.000 claims abstract 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract 2
- 101001012040 Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1) Immunomodulating metalloprotease Proteins 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 31
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 31
- 239000004571 lime Substances 0.000 abstract description 31
- 239000010802 sludge Substances 0.000 abstract description 15
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 12
- 235000012255 calcium oxide Nutrition 0.000 abstract description 9
- 238000009993 causticizing Methods 0.000 abstract description 9
- 239000013078 crystal Substances 0.000 abstract description 6
- 238000009835 boiling Methods 0.000 abstract description 3
- 229910021653 sulphate ion Inorganic materials 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000002244 precipitate Substances 0.000 abstract description 2
- 230000029087 digestion Effects 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 239000008267 milk Substances 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007775 late Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/20—Preparation by reacting oxides or hydroxides with alkali metal salts
- C01D1/22—Preparation by reacting oxides or hydroxides with alkali metal salts with carbonates or bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Paper (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7804239-7 | 1978-04-14 | ||
| SE7804239A SE419997B (sv) | 1978-04-14 | 1978-04-14 | Sett att bereda vitlut vit ett tryck over atmosferstrycket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1163777A true CA1163777A (en) | 1984-03-20 |
Family
ID=20334613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000325039A Expired CA1163777A (en) | 1978-04-14 | 1979-04-06 | Preparation of white liquor |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH0123596B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1163777A (enrdf_load_stackoverflow) |
| FI (1) | FI64671B (enrdf_load_stackoverflow) |
| SE (1) | SE419997B (enrdf_load_stackoverflow) |
| WO (1) | WO1979000931A1 (enrdf_load_stackoverflow) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI71786C (fi) * | 1983-02-23 | 1987-02-09 | Enso Gutzeit Oy | Kausticeringsfoerfarande. |
| SE463771C (sv) * | 1985-05-02 | 1999-07-12 | Caustec Ab | Anordning och förfarande för separering av vitlut, mesa och eventuellt slam varvid användes ett roterande skivfilter |
| FI72156C (fi) * | 1985-03-19 | 1987-04-13 | Enso Gutzeit Oy | Kausticeringsfoerfarande. |
| US5145556A (en) * | 1991-07-31 | 1992-09-08 | International Paper Company | Single-stage slaking and causticizing method |
| WO1996026901A1 (en) * | 1995-02-27 | 1996-09-06 | Aeci Limited | Production of precipitated calcium carbonate |
| AP663A (en) * | 1995-03-02 | 1998-08-19 | Pretoria Portland Cement Ltd | Calcium carbonate precipitation method. |
| EP0953544B1 (en) * | 1996-12-09 | 2006-10-18 | Nippon Paper Industries Co., Ltd. | Processes for preparing calcium carbonate |
| JP3808263B2 (ja) | 2000-01-18 | 2006-08-09 | 日本製紙株式会社 | 炭酸カルシウムの製造方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK2969C (da) * | 1900-04-17 | Richard Jaeger | Fremgangsmaade til Tørlæskning af Kalk. | |
| DE109555C (enrdf_load_stackoverflow) * |
-
1978
- 1978-04-14 SE SE7804239A patent/SE419997B/sv not_active IP Right Cessation
-
1979
- 1979-04-06 CA CA000325039A patent/CA1163777A/en not_active Expired
- 1979-04-09 WO PCT/SE1979/000085 patent/WO1979000931A1/en unknown
- 1979-04-09 FI FI791164A patent/FI64671B/fi not_active Application Discontinuation
- 1979-04-09 JP JP54500648A patent/JPH0123596B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0123596B2 (enrdf_load_stackoverflow) | 1989-05-08 |
| SE7804239L (sv) | 1979-10-15 |
| JPS55500189A (enrdf_load_stackoverflow) | 1980-04-03 |
| FI791164A7 (fi) | 1979-10-15 |
| WO1979000931A1 (en) | 1979-11-15 |
| FI64671B (fi) | 1983-08-31 |
| SE419997B (sv) | 1981-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |